How many oxygen sensors does a 2001 Nissan Frontier have?
The 2001 Nissan Frontier will be fitted with two oxygen sensors that can be found on the exhauSTSystem of the car. There will be one before the catalytic converter and one is after. The firSTSensor is at the end of the exhaust manifold and right where the exhaust pipe meets the manifold.
What happens when the oxygen sensor goes bad on a Nissan Pathfinder?
Oxygen sensors play a vital role in both engine management and emissions control. When an O2 (oxygen) sensor go bad, it’ll cause your Nissan Pathfinder ‘s engine to run less efficiently. Your Pathfinder can exhibit symptoms when the Oxygen sensor has gone bad.
What causes the p0138 code on a Nissan Pathfinder?
Here are the most common issues that cause the P0138 code in the Nissan Pathfinder. They are presented in order (somewhat) of most to least likely to cause the problem. Bad Oxygen Sensor – The O2 sensor itself is one of the most likely reasons that P0138 is triggering your service engine soon light.
What is the OBDII code on a Nissan Pathfinder?
P0138 is a common OBDII code that occurs in many vehicles, including the Nissan Pathfinder. The code is triggered when: The voltage at the sensor remains above threshold for 20 seconds or more There are also some less likely problems that can cause P0138. We’ll go over those below.
How many O2 sensors are in a car?
If a vehicle being serviced is not covered in the charts, inspect the exhaust system in the general locations to find the applicable O2 sensors. NOTE: If equipped with dual exhaust systems, there may be up to 4 or 5 O2 sensors in the exhaust system. Be sure to locate all of them before commencing with any testing or service.
What does the O2 sensor on a Nissan Pathfinder do?
An o2 sensor for Nissan Pathfinder works hard, but once it’s covered in dirt and carbon it can’t be cleaned or repaired. AutoZone’s Pathfinder oxygen sensors measure the oxygen in your rig’s exhaust so your vehicle’s computer sends the optimum mix of air and fuel to your engine.
Where is the O2 sensor in the exhaust manifold?
Fig. 2: Location No. 1 — Typical O2 Sensor located in the exhaust manifold Fig. 4: Location No. 3 — Exhaust collector (where more than 1 pipe joins together)
Can a Nissan Altima oxygen sensor go bad?
In this video I replace the upstream oxygen sensor replacement on my 1999 Nissan Altima. When oxygen sensors go bad it can cause the engine to run bad or die. Sometimes it’s very hard to find that the oxygen sensor is at fault because it might not log any faults for that.
Where is the oxygen sensor in the engine?
An Oxygen sensor that is between the catalytic converter and the engine is known as an “upstream” sensor. Oxygen sensors after the catalytic converter are “downstream sensors”. As a rule, the upstream sensor is more important for engine timing and air/fuel ratios.